
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, dl, dt, dd, ol, nav ul, nav li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    text-decoration: none;
}

article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {
    display: block;
}

ol, ul {
    list-style: none;
    margin: 0px;
    padding: 0px;
}

blockquote, q {
    quotes: none;
}

blockquote:before, blockquote:after, q:before, q:after {
    content: '';
    content: none;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

a {
    text-decoration: none;
}

.txt-rt {
    text-align: right;
}

.txt-lt {
    text-align: left;
}

.txt-center {
    text-align: center;
}

.float-rt {
    float: right;
}

.float-lt {
    float: left;
}

.clear {
    clear: both;
}

.pos-relative {
    position: relative;
}

.pos-absolute {
    position: absolute;
}

.vertical-base {
    vertical-align: baseline;
}

.vertical-top {
    vertical-align: top;
}

nav.vertical ul li {
    display: block;
}

nav.horizontal ul li {
    display: inline-block;
}

img {
    max-width: 100%;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    background-color: #add8e6; /* 这是一种淡蓝色 */ 
    /* background: url('./hengDaProject/static/img/suop.jpg') no-repeat; */
    background-size: cover;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    -ms-background-size: cover;
    background-attachment: fixed;
    background-position: center;
}

body a {
    transition: 0.5s all;
    -webkit-transition: 0.5s all;
    -o-transition: 0.5s all;
    -moz-transition: 0.5s all;
    -ms-transition: 0.5s all;
}

ul {
    padding: 0;
    margin: 0;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    padding: 0;
}

p {
    padding: 0;
    margin: 0;
    color: #999;
}

/*-- main --*/
.main {
    text-align: center;
}

h1.logo-w3 {
    font-size: 3em;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: #ffffff;
    text-align: center;
    margin: 5% 0;
    width: 100%;
}

.w3layouts-main h2 {
    color: #fff;
    font-size: 29px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 30px;
    text-align: center;
}

.w3layouts-main {
    max-width: 420px;
    margin: 0 auto;
    background: rgba(0, 0, 0, 0.2);
    text-align: center;
    -webkit-box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.75);
    -moz-box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.75);
    box-shadow: 0px 0px 20px 0px rgba(0, 0, 0, 0.75);
}

.w3layouts-main {
    padding: 40px 30px;
}

input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 15px;
    outline: none;
    font-size: 15px;
    font-weight: 100;
    color: #fff;
    margin-bottom: 20px;
    font-family: 'Montserrat', sans-serif;
    border: 1px solid #fff;
    background: transparent;
    background: rgba(0, 0, 0, 0.2);
    letter-spacing: 1px;
    border-radius: 3px;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    -ms-border-radius: 3px;
    -o-border-radius: 3px;
    box-sizing: border-box;
}

input[type="submit"] {
    width: 100%;
    padding: 14px 30px;
    font-size: 14px;
    border-radius: 3px;
    -webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    -ms-border-radius: 3px;
    -o-border-radius: 3px;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: #fff;
    color: #333;
    border: none;
    outline: none;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
    transition: 0.5s all;
    -webkit-transition: 0.5s all;
    -o-transition: 0.5s all;
    -moz-transition: 0.5s all;
    -ms-transition: 0.5s all;
}

input[type="submit"]:hover {
    background: #ff4f81;
    color: #fff;
    transition: 0.5s all;
    -webkit-transition: 0.5s all;
    -o-transition: 0.5s all;
    -moz-transition: 0.5s all;
    -ms-transition: 0.5s all;
}

.w3layouts-main2 input[type="submit"] {
    margin: 27px auto 31px;
}

/*--placeholder-color--*/

::-webkit-input-placeholder {
    color: #fff;
}

:-moz-placeholder { /* Firefox 18- */
    color: #fff;
}

::-moz-placeholder { /* Firefox 19+ */
    color: #fff;
}

:-ms-input-placeholder {
    color: #fff;
}

/*--//placeholder-color--*/
/*-- //main --*/

/*--footer--*/
.footer-w3l p {
    margin: 3.5em 0em 0em;
    color: #fff;
    font-size: 15px;
    font-weight: 300;
    letter-spacing: 2px;
    line-height: 26px;
}

.footer-w3l a {
    color: #999;
    font-family: 'Montserrat', sans-serif;
}

.footer-w3l a:hover {
    color: #fff;
    text-decoration: underline;
}

/*--//footer--*/

/*--responsive--*/

@media (max-width: 1600px) {
    h1.logo-w3 {
        margin: 15px 0;
    }
}

@media (max-width: 1440px) {
    h1.logo-w3 {
        font-size: 2em;
    }
}

@media (max-width: 1366px) {
    h1.logo-w3 {
        font-size: 2em;
    }

    .footer-w3l p {
        margin: 3em 0em 2em;
    }
}

@media (max-width: 1280px) {
    h1.logo-w3 {
        font-size: 2em;
    }

    .footer-w3l p {
        margin: 4.5em 0em 0em;
    }
}

@media (max-width: 1080px) {
    h1.logo-w3 {
        font-size: 2em;
        letter-spacing: 3px;
    }

    .w3layouts-main h2 {
        font-size: 27px;
    }
}

@media (max-width: 1050px) {
}

@media (max-width: 1024px) {
    h1.logo-w3 {
        font-size: 2.6em;
    }

    .w3layouts-main h2 {
        font-size: 26px;
    }

    .footer-w3l p {
        margin: 2em 0em;
    }
}

@media (max-width: 991px) {
    h1.logo-w3 {
        font-size: 2.5em;
        margin: 1em 0;
    }

    .w3layouts-main h2 {
        font-size: 25px;
    }

    input[type="submit"] {
        padding: 14px 30px;
        font-size: .875em;
    }
}

@media (max-width: 800px) {
    h1.logo-w3 {
        font-size: 2.4em;
        letter-spacing: 2px;
    }
}

@media (max-width: 736px) {
    h1.logo-w3 {
        font-size: 2.3em;
    }

    .footer-w3l p {
        font-size: 14px;
        letter-spacing: 1px;
    }
}

@media (max-width: 667px) {
    h1.logo-w3 {
        font-size: 2em;
        letter-spacing: 1px;
    }

    .w3layouts-main h2 {
        font-size: 23px;
    }
}

@media (max-width: 568px) {
    .footer-w3l p {
        margin: 2em;
    }
}

@media (max-width: 480px) {
    h1.logo-w3 {
        font-size: 1.8em;
    }

    .w3layouts-main h2 {
        font-size: 20px;
        letter-spacing: 1px;
    }

    .footer-w3l p {
        margin: 2em 1em;
    }

    .w3layouts-main {
        max-width: 350px;
    }
}